package com.lzx.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.lzx.reggie.common.R;
import com.lzx.reggie.entity.User;
import com.lzx.reggie.service.UserService;
import com.lzx.reggie.utils.SMSUtils;
import com.lzx.reggie.utils.ValidateCodeUtils;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@Slf4j
@RequiredArgsConstructor
@RequestMapping("/user")
public class UserController {

    private final UserService userService;
    private final StringRedisTemplate stringRedisTemplate;

    /**
     * 发送手机短信验证码
     *
     * @param user
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) {
        //1.获取手机号
        String phone = user.getPhone();

        if (StringUtils.isNotEmpty(phone)) {
            //2.生成随机的4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}", code);

            //3.调用阿里云的短信服务API，完成短信的发送
            //SMSUtils.sendMessage("瑞吉外卖","",phone,code);

            /*//4.将生成的验证码保存到Session中
            session.setAttribute(phone, code);*/
            //4.将我们生成的验证码，缓存到redis中，设置有效期为5min
            stringRedisTemplate.opsForValue().set(phone, code, 5, TimeUnit.MINUTES);

            return R.success("手机验证码短信发送成功...");
        }

        return R.success("短信发送失败...");
    }

    /**
     * 移动端用户登录
     *
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session) {
        log.info(map.toString());

        //获取手机号
        String phone = map.get("phone").toString();

        //获取验证码
        String code = map.get("code").toString();

        /*//从session中获取保存的验证码
        Object codeInSession = session.getAttribute(phone);*/
        //从redis中获取验证码
        String codeInRedis = stringRedisTemplate.opsForValue().get(phone);

        //进行比对，判断和用户输入的验证码是否一致
        if (codeInRedis != null && codeInRedis.equals(code)) {
            //如果比对成功，说明登录成功
            //判断当前登陆的用户是否为新用户，如果是新用户就自动完成注册
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);

            User user = userService.getOne(queryWrapper);
            if (user==null){
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }

            //登录成功之后，将用户信息放在session一份
            session.setAttribute("user",user.getId());

            //如果用户登录成功，删除redis中的验证码
            stringRedisTemplate.delete(phone);

            return R.success(user);
        }

        return R.error("登录失败");
    }

}
